Introduction to Radar General Knowledge Objective Type Questions & Answers | Introduction to Radar General Knowledge Quiz

Questions

21 ‘SAR’ means :

A system aperture radar

B synthetic aperture radar

C similar aperture radar

D synchronizing aperture radar

View Answer

Answer: similar aperture radar

22 Radome is made of :

A insulator

B conductor

C magnetic material

D semiconductor

View Answer

Answer: insulator

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23 Phased array radar is used for :

A fast scanning

B non-scanning only

C weather forecasting

D speed trapping

View Answer

Answer: fast scanning

24 Grating lobes are :

A desirable

B undesirable

C used in point communications

D used in weather forecast radars

View Answer

Answer: undesirable

25 Correlation is :

A the process of matching two waveforms

B an algorithm

C a matched filter

D the process of integration

View Answer

Answer: the process of matching two waveforms

26 MST radar is used for :

A remote sensing

B weather forecasting

C fire controlling

D speed trapping

View Answer

Answer: weather forecasting

27 Radar altimeter is used for measurement of :

A height

B speed

C range

D bearing

View Answer

Answer: height

28 Cross-range has the units of :

A m

B m^2

C degree

D m/s

View Answer

Answer: m

29 Most of the weather radars use :

A linear polarization

B circular polarization

C horizontal polarization

D vertical polarization

View Answer

Answer: circular polarization

30 Radar cross-section is expressed in :

A m

B m^2

C m^3

D watt/m^2

View Answer

Answer: m^2

31 ECCM is :

A Electronic Counter Counter Measure

B Electronic Communication Counter Meter

C Electrical Counter Communication Measure

D Electrical Communication Critical Measure

View Answer

Answer: Electronic Counter Counter Measure

32 Fourier transform is :

A invented by Fourier

B used to convert a frequency variable into time domain

C not an operation

D an operation containing integration

View Answer

Answer: invented by Fourier

33 Pulse compression :

A increases bandwidth

B decreases bandwidth

C increases range resolution

D increases cross-range resolution

View Answer

Answer: increases bandwidth

34 Clutter is :

A a unwanted echo

B a desired echo

C a target

D a radar beam

View Answer

Answer: a unwanted echo

35 Matched filter is :

A a low pass-filter

B a high-pass filter

C used to optimize SNR

D used to reduce SNR

View Answer

Answer: used to optimize SNR

36 The cross-section of chaff is :

A small

B high

C zero

D infinity

View Answer

Answer: high

37 Ideal value of SNR in dB is :

A ∞

B zero

C – ∞

D 10

View Answer

Answer: ∞

38 LIDAR means :

A Linear Detection and Ranging

B Light Detection and Ranging

C Linear Detection Radar

D Light Detection Radar

View Answer

Answer: Light Detection and Ranging

39 Directional coupler is :

A a switch

B an amplifier

C an oscillator

D an active device

View Answer

Answer: a switch

40 Kalman filter is :

A a low pass filter circuit

B a high pass filter circuit

C an algorithm

D a band filter circuit

View Answer

Answer: an algorithm

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